By Rachel Treisman The damaged Air Canada Express CRJ-900 sits on the LaGuardia runway Monday morning. Timothy A. Clary/AFP via Getty Images hide caption Two pilots were killed and dozens of passengers injured when an Air Canada regional jet collided with a fire truck at New York's LaGuardia Airport late Sunday night. Air Canada Flight 8646, operated by regional airline Jazz Aviation, was landing in New York around 11:30 p.m. when it struck a Port Authority Aircraft Rescue and Firefighting vehicle, said Kathryn Garcia, executive director of the Port Authority of New York and New Jersey, which operates the airport. Officials say 72 passengers and four crew members were on board the flight from Montréal-Trudeau International Airport. Garcia said at a press conference early Monday that the pilot and first officer, who have not yet been identified, were both killed. She said 41 passengers and crew members were transported to the hospital.…